CN114023270A - Electronic ink screen driving method, device, equipment and storage medium - Google Patents

Electronic ink screen driving method, device, equipment and storage medium Download PDF

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Publication number
CN114023270A
CN114023270A CN202111222562.7A CN202111222562A CN114023270A CN 114023270 A CN114023270 A CN 114023270A CN 202111222562 A CN202111222562 A CN 202111222562A CN 114023270 A CN114023270 A CN 114023270A
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data
electronic ink
ink screen
screen
interface
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CN114023270B (en
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朱增
许俊文
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ONYX INTERNATIONAL Inc
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ONYX INTERNATIONAL Inc
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
    • G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/61—Installation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates

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  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Hardware Design (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The embodiment of the application discloses a method, a device and equipment for driving an electronic ink screen and a storage medium. The technical scheme provided by the embodiment of the application determines the control strategy of the electronic ink screen according to the current display mode or the strategy configuration set by the user, and according to the determined control strategy, generating buffer data to be displayed according to the data of the buffer area of the current display picture data displayed on the electronic ink screen, the data of the picture to be displayed of the next frame to be displayed and the screen refreshing mode, and encoding the buffered data to obtain intermediate format data, sending the intermediate format data to the bridge module, decoding the intermediate format data by the bridge module to obtain waveform data and time sequence data, sending the waveform data and the time sequence data to the electronic ink screen by the bridge module to drive the electronic ink screen, when the electronic ink screen or the ink screen mainboard needs to be updated, the bridge module is updated, so that the hardware updating cost is effectively reduced, and the adaptive capacity of the electronic ink screen is improved.

Description

Electronic ink screen driving method, device, equipment and storage medium
Technical Field
The embodiment of the application relates to the technical field of display, in particular to a method, a device, equipment and a storage medium for driving an electronic ink screen.
Background
The electronic ink screen achieves a display effect close to that of the conventional paper using an electrophoresis technique, and thus is also called "electronic paper". Electronic ink screens generally display images by electronic ink, which is usually made into a thin film and composed of a large number of microcapsules, in which pigment particles having different charges are disposed. In the initial state, the pigment particles are suspended in the microcapsules, and when an electric field in a certain direction is applied, the corresponding pigment particles are pushed to the top, the microcapsules can display different colors, and the microcapsules with different colors form various characters and patterns.
When the electronic ink screen is controlled to display patterns, the process of controlling pigment particles to be adsorbed at the bottom or the top of the capsule through the electric field is a physical process, the electronic ink screen can provide a Waveform file, the intermediate processes required for displaying the next frame of picture data to be displayed are determined according to the Waveform file and the current displayed picture of the electronic ink screen, and different control signals are applied in the intermediate processes. Due to the complexity of electronic ink screen driving, it is generally driven by a dedicated electronic ink screen Display Controller (EPDC). The electronic ink screen display controller is generally integrated in an ink screen mainboard, and the electronic ink screen display controller needs a special circuit or a chip, so that the design and production period is long, the updating speed is low, the flexibility is poor, and the cost is high. In addition to electronic ink screen updates, electronic ink screen motherboard (SoC) updates may also result in electronic ink screen display controllers needing to be updated and replaced.
Disclosure of Invention
The embodiment of the application provides an electronic ink screen driving method, an electronic ink screen driving device, electronic ink screen driving equipment and a storage medium, and aims to solve the technical problems that in the prior art, the updating and updating speed of an electronic ink screen display controller is low, the flexibility is poor, the cost is high, and the electronic ink screen display controller needs to be updated and replaced again due to the updating of an ink screen mainboard.
In a first aspect, an embodiment of the present application provides an electronic ink screen driving method, which is applied to an ink screen device, where the ink screen device includes a main control module, a bridge module, and an electronic ink screen, the bridge module is connected to the main control module and the electronic ink screen through a bridge interface and a driving interface, respectively, the bridge interface includes an MIPI-DSI interface, and the method includes:
the method comprises the steps that a main control module determines a control strategy for an electronic ink screen according to a current display mode or set strategy configuration, wherein the control strategy comprises a clock control strategy and/or a mode control strategy, the clock control strategy is used for indicating a target working clock of a bridging interface, the mode control strategy is used for indicating a target operation mode of the bridging interface, and the target operation mode comprises a command mode and a video mode;
the main control module generates buffer data to be displayed according to the current display picture data, the next frame of picture data to be displayed and a screen refreshing mode displayed on the electronic ink screen according to the control strategy, wherein the buffer data comprises first time sequence data and first waveform data used for driving the electronic ink screen;
the main control module encodes the buffer data according to the specification requirement of a bridge interface to obtain intermediate format data, and sends the intermediate format data to the bridge module through the bridge interface;
the bridging module decodes the intermediate format data to obtain the buffer data, converts the buffer data to obtain screen driving data according to the specification requirement of a driving interface, and sends the screen driving data to the electronic ink screen through the driving interface to drive the electronic ink screen, wherein the screen driving data comprises second time sequence data and second waveform data for driving the electronic ink screen.
Further, the determining a control strategy for the electronic ink screen includes:
determining a clock control strategy for the electronic ink screen according to the refresh speed requirement of the current display mode, wherein the higher the refresh speed requirement is, the smaller the target working clock is;
and determining the current working clock through a working clock query interface, and setting the current working clock as the target working clock through a working clock setting interface when the current working clock is inconsistent with the target working clock.
Further, the determining a control strategy for the electronic ink screen includes:
determining a mode control strategy for the electronic ink screen according to the refresh rate requirement of the current display mode, wherein the refresh rate requirement corresponding to the video mode is higher than the refresh rate requirement corresponding to the command mode;
and determining a current operation mode through an operation mode query interface, and setting the current operation mode to be the target operation mode through an operation mode setting interface when the current operation mode is inconsistent with the target operation mode.
Further, the generating buffer data to be displayed according to the current display picture data displayed on the electronic ink screen, the next frame of picture data to be displayed and the screen refresh mode includes:
determining first time sequence data and first waveform data for driving the electronic ink screen to be converted from current display picture data to next frame of picture data to be displayed based on a waveform format file and a screen refreshing mode of the electronic ink screen;
buffer data to be displayed is generated from the first timing data and the first waveform data.
Furthermore, the main control module is connected with a data cache module, and the data cache module is used for maintaining current display picture data displayed on the electronic ink screen and next frame of picture data to be displayed;
before the main control module generates the buffer data to be displayed, the main control module is further configured to:
and acquiring current display picture data displayed on the electronic ink screen and next frame of picture data to be displayed from the data cache module.
Further, the method further comprises:
and after the electronic ink screen is initialized and the data cache module does not have the current display picture data, the main control module generates the buffer data to be displayed according to the next frame of picture data to be displayed of the electronic ink screen.
Further, the method further comprises:
and the main control module responds to the screen full-brushing instruction and generates buffer data for driving the electronic ink screen to brush fully according to the specification requirement of a driving interface of the electronic ink screen.
Furthermore, the bridge module is configured with multiple types of driving interfaces, and the bridge module is connected with the electronic ink screen through the driving interface corresponding to the driving communication protocol of the electronic ink screen.
In a second aspect, an embodiment of the present application provides an electronic ink screen driving device, where the ink screen driving device includes a main control module, a bridge module, and an electronic ink screen, where the bridge module is connected to the main control module and the electronic ink screen through a bridge interface and a driving interface, respectively, and the bridge interface includes an MIPI-DSI interface;
the main control module is used for determining a control strategy for the electronic ink screen according to a current display mode or a set strategy configuration, wherein the control strategy comprises a clock control strategy and/or a mode control strategy, the clock control strategy is used for indicating a target working clock of the bridge interface, the mode control strategy is used for indicating a target operation mode of the bridge interface, and the target operation mode comprises a command mode and a video mode; and
according to the control strategy, generating buffer data to be displayed according to current display picture data, next frame of picture data to be displayed and a screen refreshing mode displayed on the electronic ink screen, wherein the buffer data comprises first time sequence data and first waveform data for driving the electronic ink screen; and
according to the specification requirement of a bridge interface, encoding the buffer data to obtain intermediate format data, and sending the intermediate format data to a bridge module through the bridge interface;
the bridge module is used for decoding the intermediate format data to obtain the buffer data, converting the buffer data to obtain screen driving data according to the specification requirement of a driving interface, and sending the screen driving data to the electronic ink screen through the driving interface to drive the electronic ink screen, wherein the screen driving data comprises second time sequence data and second waveform data used for driving the electronic ink screen.
In a third aspect, embodiments of the present application provide a storage medium containing computer-executable instructions for performing the electronic ink screen driving method according to the first or second aspect when executed by a computer processor.
The embodiment of the application determines a control strategy for the electronic ink screen according to a current display mode or a strategy configuration set by a user, a main control module generates buffer data according to the determined control strategy, the current display picture data displayed on the electronic ink screen, the next frame of picture data to be displayed and a screen refreshing mode, encodes the buffer data according to the specification requirement of a bridge interface to obtain intermediate format data, sends the intermediate format data to a bridge module, decodes the intermediate format data by the bridge module to obtain the buffer data, converts the buffer data according to the specification requirement of a driving interface to obtain screen driving data, sends the screen driving data to the electronic ink screen to drive the electronic ink screen to display the next frame of picture data to be displayed, and generates the screen driving data for the electronic ink screen in the main control module, the electronic ink screen display controller has the advantages that dependence on the electronic ink screen display controller is removed, the electronic ink screen is connected through the bridging module, hardware compatibility is improved, when the electronic ink screen or the ink screen mainboard needs to be updated, the bridging module is updated, a special electronic ink screen display controller does not need to be redesigned, hardware updating cost is effectively reduced, and the adaptive capacity of the electronic ink screen is improved.
Drawings
FIG. 1 is a schematic structural diagram of an ink screen apparatus according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating a connection relationship between a main control module, a bridge module, and an electronic ink screen according to an embodiment of the present disclosure;
FIG. 3 is a flowchart of a method for driving an electronic ink screen according to an embodiment of the present disclosure;
FIG. 4 is a flow chart of another method for driving an electronic ink screen according to an embodiment of the present disclosure;
fig. 5 is a flowchart of another electronic ink screen driving method according to an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present application are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Fig. 1 shows a schematic structural diagram of an ink screen device according TO an embodiment of the present application, and as shown in fig. 1, an electronic ink screen driving system according TO the embodiment includes an electronic ink screen (EINK PANEL in the drawing), a bridge module (DSI-TO-DBI in the drawing), and a main control module (SOC in the drawing), where the electronic ink screen is communicatively connected TO the main control module through the bridge module. The bridging module is connected with the main control module and the electronic ink screen through the bridging interface and the driving interface respectively. Specifically, the bridge module is provided with a bridge interface and a driving interface, the main control module is provided with an output interface, the electronic ink screen is provided with a display interface, the bridge interface is matched with the output interface of the main control module, and the driving interface is matched with the display interface of the electronic ink screen. Wherein, the bridging interface adopts an MIPI-DSI interface.
Fig. 2 is a schematic diagram of a connection relationship among a main control module, a bridge module, and an electronic ink screen according to an embodiment of the present application, and with reference to fig. 1 and fig. 2, where the bridge interface is an MIPI interface, and correspondingly, the main control module and the bridge module communicate with each other based on an MIPI protocol. Optionally, the driver interface may be an 8080MCU interface, where the bridge interface and the driver interface are different types of data interfaces. For example, the output interface of the main control module and the bridge interface of the bridge module are both MIPI-DSI interfaces, that is, the main control module and the bridge module are in communication connection through the MIPI-DSI interfaces, the display interface of the electronic ink screen and the driving interface of the bridge module are both 8080MCU interfaces, that is, the bridge module and the electronic ink screen are in communication connection through the 8080MCU interfaces.
It can be understood that the interface type of the driving interface of the bridge module in communication connection with the electronic ink screen may be set according to the specification requirement of the driving interface of the electronic ink screen. Optionally, multiple types of driving interfaces are configured in the bridge module, and the bridge module is connected to the electronic ink screen through a driving interface corresponding to a driving communication protocol of the electronic ink screen. Through configuring various driving interfaces on the bridging module, the driving interfaces of corresponding types can be selected to be connected with the electronic ink screen according to the electronic ink screen.
The main control module provided by this embodiment is configured to determine a control policy for the electronic ink screen according to a current display mode or a set policy configuration, where the control policy includes a clock control policy and/or a mode control policy, the clock control policy is used to indicate a target operating clock of the bridge interface, the mode control policy is used to indicate a target operation mode of the bridge interface, and the target operation mode includes a command mode and a video mode. Further, the main control module generates buffer data to be displayed according to the current display picture data, the next frame of picture data to be displayed and the screen refreshing mode displayed on the electronic ink screen according to the control strategy, wherein the buffer data comprises first time sequence data and first waveform data used for driving the electronic ink screen; and coding the buffer data according to the specification requirement of the bridge interface to obtain intermediate format data, and sending the intermediate format data to the bridge module through the bridge interface. The current display picture data can be understood as the picture data being displayed by the electronic ink screen, and the next frame of picture data to be displayed is the picture data which needs to replace the current display picture data currently displayed by the electronic ink screen. It can be understood that, after the next frame of to-be-displayed picture data is displayed on the electronic ink screen, the next frame of to-be-displayed picture data is changed into the current display picture data corresponding to the next processing period, and a new to-be-displayed picture is extracted from the data buffer area as the next frame of to-be-displayed picture data corresponding to the next processing period. The data cache region records a to-be-displayed picture to be displayed, the to-be-displayed picture is added into the data cache region after the to-be-displayed picture to be displayed is determined, and the to-be-displayed picture is extracted from the data cache region according to the first-in first-out sequence to serve as the next frame of to-be-displayed picture data. The refresh mode includes an INIT mode, a DU mode, a GC16 mode, a GU mode, and an a2 mode.
Further, the bridge module provided in this embodiment is configured to decode the intermediate format data to obtain buffer data, convert the buffer data to obtain screen driving data according to a specification requirement of the driving interface, and send the screen driving data to the electronic ink screen through the driving interface to drive the electronic ink screen, where the screen driving data includes second timing data and second waveform data used for driving the electronic ink screen. For example, according to an encoding strategy for encoding the buffered data to obtain the intermediate format data, a decoding strategy corresponding to the encoding strategy is determined, and the intermediate format data is decoded based on the decoding strategy to obtain the buffered data.
Further, when the main control module generates buffer data to be displayed according to the current display image data, the next frame of image data to be displayed and the screen refresh mode displayed on the electronic ink screen, the method specifically comprises the following steps: determining first time sequence data and first waveform data for driving the electronic ink screen to be converted from current display picture data to next frame of picture data to be displayed based on a waveform format file and a screen refreshing mode of the electronic ink screen; buffer data to be displayed is generated based on the first timing data and the first waveform data.
Further, the main control module is connected to a data cache module (Memory in the figure), and the data cache module is used for maintaining current display picture data displayed on the electronic ink screen and next frame of picture data to be displayed. For example, a data buffer area for buffering the current display picture data and the next frame of picture data to be displayed is set in the data buffer module. It is understood that what is maintained in the data buffer module may be a queue, that is, in addition to the current display picture data and the next frame of picture data to be displayed, the queue may also include the following picture data to be displayed.
Before the master control module generates the buffer data to be displayed, the method further comprises the following steps: and acquiring current display picture data displayed on the electronic ink screen and next frame of picture data to be displayed from the data cache module.
Further, the main control module is further configured to: after the electronic ink screen is initialized and the data cache module does not have the current display picture data, generating the buffer data to be displayed according to the next frame of picture data to be displayed of the electronic ink screen and the screen refreshing mode. The screen refreshing mode corresponds to the refreshing mode after the electronic ink screen is initialized.
Further, the main control module is further configured to: and responding to a screen full-brushing instruction, and generating buffer data for driving the electronic ink screen to be fully brushed according to the specification requirement of a driving interface of the electronic ink screen. Wherein the screen refresh mode corresponds to a full screen refresh mode.
The main control module generates buffer data according to current display picture data displayed on the electronic ink screen, next frame of picture data to be displayed and a screen refreshing mode, encodes the buffer data according to the specification requirement of a bridge interface to obtain intermediate format data, sends the intermediate format data to the bridge module, decodes the intermediate format data by the bridge module to obtain the buffer data, converts the buffer data according to the specification requirement of a driving interface to obtain screen driving data, sends the screen driving data to the electronic ink screen to drive the electronic ink screen to display the next frame of picture data to be displayed, generates the screen driving data for the electronic ink screen in the main control module, removes the dependence on a display controller of the electronic ink screen, and is connected with the electronic ink screen through the bridge module to improve hardware compatibility, when the electronic ink screen or the ink screen mainboard needs to be updated, the bridge module is updated without redesigning a special electronic ink screen display controller, so that the hardware updating cost is effectively reduced, and the adaptive capacity of the electronic ink screen is improved.
Fig. 3 is a flowchart of an electronic ink screen driving method according to an embodiment of the present disclosure, where the electronic ink screen driving method according to an embodiment of the present disclosure may be executed by the ink screen device provided above.
The following description will be given taking an example in which the ink panel apparatus performs the electronic ink panel driving method. Referring to fig. 3, the electronic ink screen driving method includes:
s101: the main control module determines a control strategy for the electronic ink screen according to the current display mode or the set strategy configuration, wherein the control strategy comprises a clock control strategy and/or a mode control strategy.
The clock control policy provided by this embodiment is used to indicate a target operating clock of the bridge interface, and the mode control policy is used to indicate a target operating mode of the bridge interface. The control strategy comprises a clock control strategy and/or a mode control strategy, the control strategy of the electronic ink screen is determined by the main control module or an application program operated by the main control module according to the current display mode or the set strategy configuration, wherein the target operation mode comprises a command mode and a video mode. The control strategy for the electronic ink screen is determined according to the current display mode, and the control strategy can be performed based on the requirements of the current display mode on the screen refreshing speed, for example, when the current display mode has a higher requirement on the screen refreshing speed, a smaller target operating clock or a video mode with a faster response speed is adopted, or when the current display mode has a lower requirement on the screen refreshing speed, a larger target operating clock or a command mode with lower power consumption is adopted.
The policy configuration can be set by a user, that is, the user sets a target working clock and/or a target operation mode of the bridge interface on the setting configuration interface based on a setting configuration interface provided by the ink screen device, and determines the policy configuration of the current ink screen device based on the set target working clock and/or the set target operation mode. In one embodiment, when determining the control strategy for the electronic ink screen, the determination scheme for the control strategy for the electronic ink screen is determined according to the current display mode and the set priority relation of the set strategy configuration. Preferably, the set policy configuration is prioritized over the current display mode, i.e. the manner of determining the control policy based on the set policy configuration is prioritized over the manner of determining the control policy based on the current display mode, in particular, the control policy is determined based on the set policy configuration when the user-set policy configuration is detected, and the control policy is determined based on the current display mode when the user-set policy configuration is not detected.
In this embodiment, a MIPI Interface (MIPI-DSI Interface) is used as a bridge Interface, and the MIPI-DSI Interface is a Display Serial Interface (Display Serial Interface) in the MIPI protocol, which has the advantages of high performance and low power. The MIPI-DSI interface supports two operation modes, namely Command Mode (Command Mode) and Video Mode (Video Mode), and when generating the buffer data, the present embodiment generates the buffer data according to the Video driving requirement of the electronic film in the Command Mode or the Video Mode.
For the command mode, the MIPI bus controller in the main control module uses the display command message to send the pixel data stream to the electronic ink screen, the electronic ink screen or the main control module has a frame buffer with a full frame length to store all the pixel data, once the data (for example, the buffer data provided in this embodiment) is placed in the frame buffer, the timing controller in the main control module takes out the data from the frame buffer and sends them to the electronic ink screen (for example, the main control module converts the buffer data into the screen driving data through the bridge module and then forwards the screen driving data to the electronic ink screen), and the MIPI bus controller does not need to refresh the electronic ink screen periodically. For the video mode, the main control module needs to continuously refresh the display, does not need to use a special data signal to transmit synchronous information, and the control signal and the image data are transmitted in a message form through the MIPI bus. The electronic ink screen does not need to be refreshed regularly in the command mode, the working power consumption is low, and the electronic ink screen is continuously refreshed in the video mode, so that higher refreshing frequency can be supported. In the embodiment, the working clock and/or the operation mode of the MIPI-DSI are inquired in real time and dynamically switched according to the characteristics of the electronic ink screen, and the corresponding working clock and/or the operation mode can be selected by the application program running on the main control module according to different use scenes.
In one possible embodiment, the master control module provides an interface for querying and setting the operation clock, based on which step S101 includes:
s1011: and determining a clock control strategy for the electronic ink screen according to the refresh rate requirement of the current display mode, wherein the higher the refresh rate requirement is, the smaller the target working clock is.
S1012: and determining the current working clock through a working clock query interface, and setting the current working clock as the target working clock through a working clock setting interface when the current working clock is inconsistent with the target working clock.
Specifically, the main control module or the application program records target operating clocks applicable to refresh rate requirements corresponding to different display modes, and the higher the refresh rate requirement is, the smaller the corresponding target operating clock is. When the electronic ink screen is driven to work, the main control module or the application program acquires the current display mode in real time, and determines a target working clock applicable to the current display mode, so that a clock control strategy for the electronic ink screen is determined.
Furthermore, the main control module provides a working clock query interface and a working clock setting interface for querying the working clock, and after the clock control strategy of the electronic ink screen is determined, the main control module or the application program can query the current working clock through the working clock query interface and judge whether the current working clock is consistent with the target working clock. And if the current working clock is consistent with the target working clock, keeping the current working clock. If the current working clock is inconsistent with the target working clock, the current working clock is set to be the target working clock through the working clock setting interface, and dynamic switching of the working clock according to the display mode is achieved, so that the effects of dynamically reducing power consumption or improving the refreshing speed of the electronic ink screen and reducing the response delay time are achieved.
For example, when the current display mode is a reading mode with a low requirement on the refresh rate, a small target working clock is set to reduce the refresh rate of display control on the electronic ink screen and reduce the power consumption of the device; when the current display mode is a video playing mode or a handwriting input mode with high requirements on the refresh rate, a large target working clock is set to improve the refresh rate of the electronic ink screen and reduce the response delay time of the electronic ink screen, so that the MIPI-DSI interface can switch different working clocks, and the effects of dynamically reducing power consumption or improving the screen refresh rate and reducing the response delay time are achieved.
In one possible embodiment, the master control module provides an interface for querying and setting the operation mode, based on which step S101 comprises:
s1013: determining a mode control strategy for the electronic ink screen according to the refresh rate requirement of the current display mode, wherein the target operation mode comprises a command mode and a video mode, and the refresh rate requirement corresponding to the video mode is higher than the refresh rate requirement corresponding to the command mode.
S1014: and determining a current operation mode through an operation mode query interface, and setting the current operation mode to be the target operation mode through an operation mode setting interface when the current operation mode is inconsistent with the target operation mode.
Specifically, the main control module or the application program records target operation modes to which refresh rate requirements corresponding to different display modes are applicable, the target operation modes provided by this embodiment include a command mode and a video mode, and the refresh rate requirement corresponding to the video mode is higher than the refresh rate requirement corresponding to the command mode. When the electronic ink screen is driven to work, the main control module or the application program acquires the current display mode in real time and determines the target operation mode applicable to the current display mode, so that the mode control strategy of the electronic ink screen is determined.
Furthermore, the main control module provides an operation mode query interface and an operation mode setting interface for querying the operation mode, and after determining the mode control strategy for the electronic ink screen, the main control module or the application program can query the current operation mode through the operation mode query interface and judge whether the current operation mode is consistent with the target operation mode. And if the current operation mode is consistent with the target operation mode, keeping the current operation mode. If the current operation mode is not consistent with the target operation mode, the current operation mode is set to the target operation mode through the operation mode setting interface, dynamic switching of the operation mode according to the display mode is achieved, and therefore the effect of dynamically reducing power consumption or improving the refreshing frequency of the electronic ink screen is achieved.
For example, when the current display mode is a reading mode with a low requirement on the refresh rate and the current operation mode is a video mode, the main control module is switched from the video mode to a command mode through the operation mode setting interface to reduce the power consumption of the device; and when the current display mode is a video playing mode or a UI interactive mode with higher requirement on the refresh rate and the current operation mode is a command mode, switching the main control module from the command mode to the video mode through the operation mode setting interface to improve the response speed of the electronic ink screen, so that the MIPI-DSI interface can be dynamically switched between the command mode and the video mode, and the effect of dynamically reducing power consumption or improving the refresh rate is achieved.
S102: and the main control module generates buffer data to be displayed according to the current display picture data, the next frame of picture data to be displayed and the screen refreshing mode displayed on the electronic ink screen according to the control strategy, wherein the buffer data comprises first time sequence data and first waveform data for driving the electronic ink screen.
The buffer data provided by the embodiment is used for indicating to drive and control the electronic ink screen, wherein the buffer data includes first timing data and first waveform data for driving the electronic ink screen, and the electronic ink screen can update a displayed picture according to the indication of the first timing data and the first waveform data in the buffer data. Illustratively, the electronic ink screen is composed of a TFT matrix, an electronic ink film, a protective film, driving electronic components and connectors, wherein the electronic ink film forms a pixel matrix, and the pixel matrix can be controlled by the TFT matrix, that is, different voltages are applied to transistors in the TFT matrix according to time sequence data and waveform data, and the display color of each corresponding pixel is controlled, so that the screen is driven to display different contents.
Illustratively, the buffer data is generated according to a control strategy, for example, according to a target working clock indicated by the clock control strategy or a target operation mode indicated by the mode control strategy, and the buffer data to be displayed is generated according to the current display picture data, the picture data to be displayed in the next frame and the screen refresh mode displayed on the electronic ink screen. For the generation of the buffer data, the current display picture data currently displayed by the electronic ink screen is firstly determined, the picture to be displayed is obtained from the data buffer area to be used as the next frame of picture data to be displayed, the screen refreshing mode of the ink display screen is determined, the intermediate process required by the electronic ink screen to be converted from the current display picture data to the next frame of picture data to be displayed is determined according to the current display picture data, the next frame of picture data to be displayed and the screen refreshing mode, and the buffer data to be displayed is generated according to the intermediate process.
S103: and the main control module encodes the buffer data according to the specification requirement of the bridge interface to obtain intermediate format data, and sends the intermediate format data to the bridge module through the bridge interface.
The bridge module that this embodiment provided is provided with bridge interface and drive interface, and the host system is provided with output interface, and the electronic ink screen is provided with the display interface. The bridge module is connected with the output interface of the main control module through a bridge interface and is connected with the display interface of the electronic ink screen through a driving interface, the interface type of the bridge interface is adapted according to the output interface type of the main control module, and the interface type of the driving interface is adapted according to the display interface type of the electronic ink screen.
Illustratively, after obtaining the buffer data to be displayed, according to the specification requirement of the bridge interface (for example, according to the specification requirement of the MIPI interface), the buffer data is encoded to obtain intermediate format data, and the intermediate format data is sent to the bridge module through the bridge interface.
It can be understood that, because the drive interface that the electron ink screen provided does not match with the interface that host system provided, the unable direct and host system communication connection of electron ink screen, this scheme bridges host system and electron ink screen through bridging module, carries out the conversion through bridging module to the communication data between host system and the electron ink screen, and the drive of electron ink screen no longer relies on electron ink screen display controller.
S104: the bridging module decodes the intermediate format data to obtain the buffer data, converts the buffer data to obtain screen driving data according to the specification requirement of a driving interface, and sends the screen driving data to the electronic ink screen through the driving interface to drive the electronic ink screen, wherein the screen driving data comprises second time sequence data and second waveform data for driving the electronic ink screen.
And after receiving the intermediate format data, the bridging module decodes the intermediate format data to obtain screen driving data, wherein the screen driving data comprises second time sequence data and second waveform data for driving the electronic ink screen.
Further, after obtaining the screen driving data, the bridge module sends the screen driving data to the electronic ink screen to drive the electronic ink screen to switch the currently displayed image data to the next frame of image data to be displayed according to the second time sequence data and the second waveform data in the screen driving data. Wherein the bridge interface and the driver interface are different types of interfaces.
The control strategy of the electronic ink screen is determined according to the current display mode or the strategy configuration set by the user, the main control module generates buffer data according to the determined control strategy, the current display picture data displayed on the electronic ink screen, the next frame of picture data to be displayed and the screen refreshing mode, encodes the buffer data according to the specification requirement of the bridge interface to obtain intermediate format data, sends the intermediate format data to the bridge module, decodes the intermediate format data by the bridge module to obtain the buffer data, converts the buffer data according to the specification requirement of the drive interface to obtain screen drive data, sends the screen drive data to the electronic ink screen to drive the electronic ink screen to display the next frame of picture data to be displayed, and generates the screen drive data for the electronic ink screen in the main control module, the electronic ink screen display controller has the advantages that dependence on the electronic ink screen display controller is removed, the electronic ink screen is connected through the bridging module, hardware compatibility is improved, when the electronic ink screen or the ink screen mainboard needs to be updated, the bridging module is updated, a special electronic ink screen display controller does not need to be redesigned, hardware updating cost is effectively reduced, and the adaptive capacity of the electronic ink screen is improved.
On the basis of the foregoing embodiments, fig. 4 is a flowchart of another electronic ink screen driving method provided in an embodiment of the present application, which is an embodiment of the foregoing electronic ink screen driving method. Referring to fig. 4, the electronic ink screen driving method includes:
s201: the main control module determines a control strategy for the electronic ink screen according to the current display mode or the set strategy configuration, wherein the control strategy comprises a clock control strategy and/or a mode control strategy.
S202: the main control module obtains the current display image data displayed on the electronic ink screen and the next frame of image data to be displayed from the data cache module.
The main control module provided by this embodiment is connected to a data cache module, and the data cache module is used for maintaining current display picture data displayed on the electronic ink screen and picture data to be displayed in a next frame. The main control module extracts the current display image data displayed on the electronic ink screen and the next frame of image data to be displayed from the data cache module in real time.
S203: and the main control module determines first time sequence data and first waveform data for driving the electronic ink screen to be converted from the current display picture data to the next frame of picture data to be displayed based on the waveform format file and the screen refreshing mode of the electronic ink screen according to the control strategy.
The first time sequence data and the first waveform data record the intermediate process required by the electronic ink screen to switch from displaying the current display picture data to displaying the next frame of picture data to be displayed. The main control module provided by this embodiment is configured with a data management module and a timing control module, and the main control module maintains current display picture data currently displayed by the electronic ink screen and next frame of picture data to be displayed, which need to be displayed next, through the data management module, and analyzes and processes the current display picture data, the next frame of picture data to be displayed, and a screen refresh mode through the timing control module, determines an intermediate process required for switching from displaying the current display picture data to displaying the next frame of picture data to be displayed, and generates first timing data and first waveform data according to the intermediate process.
In one possible embodiment, the electronic ink screen is provided with a Waveform format file (Waveform file) recording specific intermediate processes required for color change of pixels in the electronic ink screen, and the intermediate processes required for switching the electronic ink screen from displaying the current frame data to displaying the next frame data to be displayed can be determined according to the Waveform format file and the screen refresh mode. Based on this, when the main control module generates the buffer data to be displayed according to the current display image data, the image data to be displayed of the next frame, and the screen refresh mode displayed on the electronic ink screen, the method specifically includes: determining first time sequence data and first waveform data for driving the electronic ink screen to be converted from current display picture data to next frame of picture data to be displayed based on a waveform format file and a screen refreshing mode of the electronic ink screen; buffer data to be displayed is generated from the first timing data and the first waveform data.
Specifically, the current display picture data currently displayed by the electronic ink screen and the next frame of picture data to be displayed which needs to be displayed next are determined, an intermediate process required for converting the display color of each pixel point in the current display picture data to the display color of the corresponding pixel point in the next frame of picture data to be displayed is determined according to the waveform format file and the screen refreshing mode, and first time sequence data and first waveform data are generated according to the intermediate process.
In one possible embodiment, the main control module determines, in addition to the first timing data and the first waveform data for driving the electronic ink screen to convert from the current display picture data to the next frame of picture data to be displayed based on the waveform format file of the electronic ink screen and the screen refresh mode, the first timing data and the first waveform data for driving the electronic ink screen to convert from the current display picture data to the next frame of picture data to be displayed, depending on the screen refresh mode and the current ambient temperature, that is, the main control module determines the first timing data and the first waveform data for driving the electronic ink screen to convert from the current display picture data to the next frame of picture data to be displayed based on the waveform format file of the electronic ink screen, the screen refresh mode, the current ambient temperature, and other information.
S204: and the main control module generates buffer data to be displayed according to the first time sequence data and the first waveform data.
After the first timing data and the first waveform data are generated, the first timing data and the first waveform data are packed into buffer data.
S205: and the main control module encodes the buffer data according to the specification requirement of the bridge interface to obtain intermediate format data, and sends the intermediate format data to the bridge module through the bridge interface.
The main control module provided by this embodiment is connected to the bridge interface of the bridge module through the output interface, and the electronic ink screen is connected to the driving interface of the bridge module through the display interface. After the main control module generates the buffer data, the buffer data is encoded according to the requirement of a communication protocol (such as an MIPI communication protocol) between the main control module and a bridge interface of the bridge module to obtain intermediate format data, and the intermediate format data is sent to the bridge interface of the bridge module by the output interface.
S206: the bridging module decodes the intermediate format data to obtain the buffer data, converts the buffer data to obtain screen driving data according to the specification requirement of a driving interface, and sends the screen driving data to the electronic ink screen through the driving interface to drive the electronic ink screen, wherein the screen driving data comprises second time sequence data and second waveform data for driving the electronic ink screen.
After receiving the intermediate format data, the bridge module determines a corresponding decoding mode according to the encoding mode for encoding the buffer data, and decodes the intermediate format data based on the decoding mode to obtain the buffer data. And further, converting the buffer data according to the specification requirement of the driving interface to obtain screen driving data. Specifically, according to the driving requirement of the electronic ink screen, the first time sequence data and the first waveform data in the buffer data are converted to obtain second time sequence data and second waveform data, and the second time sequence data and the second waveform data are packaged into screen driving data (according to the screen driving data, control information such as transformation and pressurization of the screen driving data of the electronic ink screen can be determined).
And after the screen driving data is obtained, the bridging module sends second screen data to a display interface of the electronic ink screen through the driving interface. After the electronic ink screen receives the screen driving data, each pixel point is controlled according to second time sequence data and second waveform data in the screen driving data, and switching from current display picture data to next frame of picture data to be displayed is achieved.
The bridge interface is an MIPI-DSI interface, and it needs to be explained that, in the prior art, the electronic ink screen is not equipped with an MIPI-DSI interface, and cannot be directly connected to the main control module, that is, the electronic ink screen cannot directly receive data based on the MIPI communication protocol, in this embodiment, the bridge module is used as a bridge connected between the main control module and the electronic ink screen, the main control module packs generated buffer data into intermediate format data based on the MIPI communication protocol, the bridge module decodes the buffer data from the intermediate format data sent by the main control module, and converts the buffer data into screen driving data according to the specification requirement of the driving interface of the electronic ink screen, so as to drive the electronic ink screen to switch the display picture. The dependence of the electronic ink screen on the electronic ink screen display controller is removed, when the main board (main control module) or the electronic ink screen is updated, the electronic ink screen display controller does not need to be additionally updated, and the hardware development cost is reduced.
In one possible embodiment, the bridge module provided by this embodiment is configured with multiple types of driving interfaces, and the bridge module is connected with the electronic ink screen through a driving interface corresponding to a driving communication protocol of the electronic ink screen. The bridge module is provided with a plurality of types of driving interfaces, and the specific driving interface connected with the display interface of the electronic ink screen can be determined according to the specific display interface type provided by the electronic ink screen, so that the adaptability to different electronic ink screens is improved. In addition, for different types of drive interfaces, the bridge module supports configuration modes of different interface types, for example, for different drive interfaces, conversion processing is performed on buffer data based on different drive interface specification requirements, and screen drive data suitable for a specific electronic ink screen is obtained. And the bridge module supports configurable, corresponding configuration can be carried out according to a specific electronic ink screen or a main control module, and the applicability of the bridge module is improved.
The control strategy of the electronic ink screen is determined according to the current display mode or the strategy configuration set by the user, the main control module generates buffer data according to the determined control strategy, the current display picture data displayed on the electronic ink screen, the next frame of picture data to be displayed and the screen refreshing mode, encodes the buffer data according to the specification requirement of the bridge interface to obtain intermediate format data, sends the intermediate format data to the bridge module, decodes the intermediate format data by the bridge module to obtain the buffer data, converts the buffer data according to the specification requirement of the drive interface to obtain screen drive data, sends the screen drive data to the electronic ink screen to drive the electronic ink screen to display the next frame of picture data to be displayed, and generates the screen drive data for the electronic ink screen in the main control module, the electronic ink screen display controller has the advantages that dependence on the electronic ink screen display controller is removed, the electronic ink screen is connected through the bridging module, hardware compatibility is improved, when the electronic ink screen or the ink screen mainboard needs to be updated, the bridging module is updated, a special electronic ink screen display controller does not need to be redesigned, hardware updating cost is effectively reduced, and the adaptive capacity of the electronic ink screen is improved. Meanwhile, the data management and the time sequence control of the traditional special electronic ink screen display controller are realized in a software mode, the maintenance of the current display picture data and the next frame of picture data to be displayed and the generation of time sequence control data and screen control data are realized through the main control module, the dependence on the special electronic ink screen display controller is removed, the software implementation mode is used as a substitute, the hardware cost is reduced, the hardware compatibility is improved, the main MIPI-DSI display interface and other display interfaces can be effectively compatible, the hardware development of the electronic ink screen display controller and a mainboard is not required to be carried out again, a bridging module with lower hardware cost is updated, the software is updated according to the requirement of an updated electronic ink screen, and the hardware updating cost is effectively controlled. The electronic ink screen display controller effectively solves the technical problems that in the prior art, the electronic ink screen display controller is low in updating speed, poor in flexibility and high in cost, and the electronic ink screen display controller needs to be updated and replaced again due to the updating of an ink screen mainboard.
On the basis of the foregoing embodiments, fig. 5 is a flowchart of another electronic ink screen driving method provided in an embodiment of the present application, where the electronic ink screen driving method is an embodiment of the foregoing electronic ink screen driving method. Referring to fig. 5, the electronic ink screen driving method includes:
s301: the main control module determines a control strategy for the electronic ink screen according to the current display mode or the set strategy configuration, wherein the control strategy comprises a clock control strategy and/or a mode control strategy.
S302: and the main control module generates buffer data to be displayed according to the current display picture data, the next frame of picture data to be displayed and the screen refreshing mode displayed on the electronic ink screen according to the control strategy, wherein the buffer data comprises first time sequence data and first waveform data for driving the electronic ink screen.
The main control module is connected with a data cache module, wherein the data cache module is used for maintaining current display picture data displayed on the electronic ink screen and next frame to-be-displayed picture data. The main control module extracts the current display picture data and the next frame of picture data to be displayed in the data caching module according to the set time interval, and after the current display picture data and the next frame of picture data to be displayed are successfully acquired, the buffer data to be displayed are generated according to the current display picture data, the next frame of picture data to be displayed and the screen refreshing mode. After the buffer data is generated, the process proceeds to step S304.
S303: and after the electronic ink screen is initialized and the data cache module does not have the current display picture data, the main control module generates the buffer data to be displayed according to the next frame of picture data to be displayed of the electronic ink screen.
It can be understood that, in general, the data caching module records current display frame data displayed on the electronic ink screen and next frame to-be-displayed frame data. When the electronic ink screen is initialized, the electronic ink screen does not display the picture, and correspondingly, the data cache module does not have the current display picture data. When the electronic ink screen is initialized, the data cache module does not have the current display picture data, the main control module can only acquire the next frame of picture data to be displayed from the data cache module, and the main control module generates the buffer data to be displayed according to the waveform format file and the next frame of picture data to be displayed of the electronic ink screen. The buffer data is used for indicating the initialized electronic ink screen to display the next frame of picture to be displayed. After the buffer data is generated, the process proceeds to step S305.
S304: and the main control module responds to the screen full-brushing instruction and generates buffer data for driving the electronic ink screen to brush fully according to the specification requirement of a driving interface of the electronic ink screen.
Specifically, the main control module generates a screen full-brush instruction at a set time interval, a set frame interval, or in response to a detected screen full-brush operation, so as to notify that the electronic ink screen is subjected to the full-brush operation. When a screen full-brushing instruction is generated, buffer data for driving the electronic ink screen to brush fully is generated according to the specification requirement of a driving interface of the electronic ink screen and the current display picture data of the electronic ink screen. After the buffer data is generated, the process proceeds to step S305.
S305: and the main control module encodes the buffer data according to the specification requirement of the bridge interface to obtain intermediate format data, and sends the intermediate format data to the bridge module through the bridge interface.
S306: the bridging module decodes the intermediate format data to obtain the buffer data, converts the buffer data to obtain screen driving data according to the specification requirement of a driving interface, and sends the screen driving data to the electronic ink screen through the driving interface to drive the electronic ink screen, wherein the screen driving data comprises second time sequence data and second waveform data for driving the electronic ink screen.
The control strategy of the electronic ink screen is determined according to the current display mode or the strategy configuration set by the user, the main control module generates buffer data according to the determined control strategy, the current display picture data displayed on the electronic ink screen, the next frame of picture data to be displayed and the screen refreshing mode, encodes the buffer data according to the specification requirement of the bridge interface to obtain intermediate format data, sends the intermediate format data to the bridge module, decodes the intermediate format data by the bridge module to obtain the buffer data, converts the buffer data according to the specification requirement of the drive interface to obtain screen drive data, sends the screen drive data to the electronic ink screen to drive the electronic ink screen to display the next frame of picture data to be displayed, and generates the screen drive data for the electronic ink screen in the main control module, the electronic ink screen display controller has the advantages that dependence on the electronic ink screen display controller is removed, the electronic ink screen is connected through the bridging module, hardware compatibility is improved, when the electronic ink screen or the ink screen mainboard needs to be updated, the bridging module is updated, a special electronic ink screen display controller does not need to be redesigned, hardware updating cost is effectively reduced, and the adaptive capacity of the electronic ink screen is improved. Meanwhile, after the electronic ink screen is initialized, buffer data for indicating the electronic ink screen to be converted from the initialized picture to the next frame of picture data to be displayed is generated according to the waveform format file and the next frame of picture data to be displayed of the electronic ink screen, so that the electronic ink screen can correctly display the next frame of picture data to be displayed, and the display effect of the electronic ink screen is ensured. And when the electronic ink screen needs to be fully brushed, buffer data for driving the electronic ink screen to be fully brushed is generated according to the specification requirement of a driving interface of the electronic ink screen, so that the display effect of the electronic ink screen is improved.
Embodiments of the present application also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are used to perform the electronic ink screen driving method provided in the above embodiments. The electronic ink screen driving method is applied to the ink screen device provided by the embodiment, the ink screen device comprises a main control module, a bridging module and an electronic ink screen, the bridging module is connected with the main control module and the electronic ink screen through a bridging interface and a driving interface respectively, and the bridging interface comprises an MIPI-DSI interface. The electronic ink screen driving method comprises the following steps: the method comprises the steps that a main control module determines a control strategy for an electronic ink screen according to a current display mode or set strategy configuration, wherein the control strategy comprises a clock control strategy and/or a mode control strategy, the clock control strategy is used for indicating a target working clock of a bridging interface, the mode control strategy is used for indicating a target operation mode of the bridging interface, and the target operation mode comprises a command mode and a video mode; the main control module generates buffer data to be displayed according to the current display picture data, the next frame of picture data to be displayed and a screen refreshing mode displayed on the electronic ink screen according to the control strategy, wherein the buffer data comprises first time sequence data and first waveform data used for driving the electronic ink screen; the main control module encodes the buffer data according to the specification requirement of a bridge interface to obtain intermediate format data, and sends the intermediate format data to the bridge module through the bridge interface; the bridging module decodes the intermediate format data to obtain the buffer data, converts the buffer data to obtain screen driving data according to the specification requirement of a driving interface, and sends the screen driving data to the electronic ink screen through the driving interface to drive the electronic ink screen, wherein the screen driving data comprises second time sequence data and second waveform data for driving the electronic ink screen.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network (such as the internet). The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations, such as in different computer systems that are connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium provided in the embodiments of the present application contains computer-executable instructions, and the computer-executable instructions are not limited to the electronic ink screen driving method described above, and may also perform related operations in the electronic ink screen driving method provided in any embodiment of the present application.
The electronic ink screen driving apparatus and the storage medium provided in the above embodiments may execute the electronic ink screen driving method provided in any embodiment of the present application, and reference may be made to the electronic ink screen driving method provided in any embodiment of the present application without detailed technical details described in the above embodiments.
The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. The present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.

Claims (10)

1. The electronic ink screen driving method is applied to ink screen equipment, the ink screen equipment comprises a main control module, a bridge module and an electronic ink screen, the bridge module is connected with the main control module and the electronic ink screen through a bridge interface and a driving interface respectively, the bridge interface comprises an MIPI-DSI interface, and the method comprises the following steps:
the method comprises the steps that a main control module determines a control strategy for an electronic ink screen according to a current display mode or set strategy configuration, wherein the control strategy comprises a clock control strategy and/or a mode control strategy, the clock control strategy is used for indicating a target working clock of a bridging interface, the mode control strategy is used for indicating a target operation mode of the bridging interface, and the target operation mode comprises a command mode and a video mode;
the main control module generates buffer data to be displayed according to the current display picture data, the next frame of picture data to be displayed and a screen refreshing mode displayed on the electronic ink screen according to the control strategy, wherein the buffer data comprises first time sequence data and first waveform data used for driving the electronic ink screen;
the main control module encodes the buffer data according to the specification requirement of a bridge interface to obtain intermediate format data, and sends the intermediate format data to the bridge module through the bridge interface;
the bridging module decodes the intermediate format data to obtain the buffer data, converts the buffer data to obtain screen driving data according to the specification requirement of a driving interface, and sends the screen driving data to the electronic ink screen through the driving interface to drive the electronic ink screen, wherein the screen driving data comprises second time sequence data and second waveform data for driving the electronic ink screen.
2. The electronic ink screen driving method according to claim 1, wherein the determining a control strategy for the electronic ink screen comprises:
determining a clock control strategy for the electronic ink screen according to the refresh speed requirement of the current display mode, wherein the higher the refresh speed requirement is, the smaller the target working clock is;
and determining the current working clock through a working clock query interface, and setting the current working clock as the target working clock through a working clock setting interface when the current working clock is inconsistent with the target working clock.
3. The electronic ink screen driving method according to claim 1, wherein the determining a control strategy for the electronic ink screen comprises:
determining a mode control strategy for the electronic ink screen according to the refresh rate requirement of the current display mode, wherein the refresh rate requirement corresponding to the video mode is higher than the refresh rate requirement corresponding to the command mode;
and determining a current operation mode through an operation mode query interface, and setting the current operation mode to be the target operation mode through an operation mode setting interface when the current operation mode is inconsistent with the target operation mode.
4. The electronic ink screen driving method according to claim 1, wherein the generating buffer data to be displayed according to the current display picture data, the picture data to be displayed in the next frame and the screen refresh mode displayed on the electronic ink screen comprises:
determining first time sequence data and first waveform data for driving the electronic ink screen to be converted from current display picture data to next frame of picture data to be displayed based on a waveform format file and a screen refreshing mode of the electronic ink screen;
buffer data to be displayed is generated from the first timing data and the first waveform data.
5. The electronic ink screen driving method according to claim 1, wherein the main control module is connected to a data buffer module, and the data buffer module is configured to maintain current display screen data displayed on the electronic ink screen and next frame of to-be-displayed screen data;
before the main control module generates the buffer data to be displayed, the main control module is further configured to:
and acquiring current display picture data displayed on the electronic ink screen and next frame of picture data to be displayed from the data cache module.
6. The electronic ink screen driving method of claim 5, further comprising:
and after the electronic ink screen is initialized and the data cache module does not have the current display picture data, the main control module generates the buffer data to be displayed according to the next frame of picture data to be displayed of the electronic ink screen.
7. The electronic ink screen driving method of claim 1, further comprising:
and the main control module responds to the screen full-brushing instruction and generates buffer data for driving the electronic ink screen to brush fully according to the specification requirement of a driving interface of the electronic ink screen.
8. The electronic ink screen driving method according to any one of claims 1 to 7, wherein the bridge module is configured with multiple types of driving interfaces, and the bridge module is connected to the electronic ink screen through a driving interface corresponding to a driving communication protocol of the electronic ink screen.
9. The ink screen equipment is characterized by comprising a main control module, a bridging module and an electronic ink screen, wherein the bridging module is respectively connected with the main control module and the electronic ink screen through a bridging interface and a driving interface, and the bridging interface comprises an MIPI-DSI interface;
the main control module is used for determining a control strategy for the electronic ink screen according to a current display mode or a set strategy configuration, wherein the control strategy comprises a clock control strategy and/or a mode control strategy, the clock control strategy is used for indicating a target working clock of the bridge interface, the mode control strategy is used for indicating a target operation mode of the bridge interface, and the target operation mode comprises a command mode and a video mode; and
according to the control strategy, generating buffer data to be displayed according to current display picture data, next frame of picture data to be displayed and a screen refreshing mode displayed on the electronic ink screen, wherein the buffer data comprises first time sequence data and first waveform data for driving the electronic ink screen; and
according to the specification requirement of a bridge interface, encoding the buffer data to obtain intermediate format data, and sending the intermediate format data to a bridge module through the bridge interface;
the bridge module is used for decoding the intermediate format data to obtain the buffer data, converting the buffer data to obtain screen driving data according to the specification requirement of a driving interface, and sending the screen driving data to the electronic ink screen through the driving interface to drive the electronic ink screen, wherein the screen driving data comprises second time sequence data and second waveform data used for driving the electronic ink screen.
10. A storage medium containing computer-executable instructions for performing the electronic ink screen driving method of any one of claims 1 to 8 when executed by a computer processor.
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